Winding shaft



wINDING SHAFT F. E. LANGDON Filed April 28. 1926 June 7, 1927.

Patented June 7, 1927.

; l er FReNx E'JLaNGnoN, or VANCOUVER, 'WAsi-rnve-frolv;l

WNDrNG SHAFT.

, implication meaApril as', 192e. l serial `No.'1c5,1o4. Y.

'-This iinentionil relates generally toV theV paperimak-ing industry, and particularly to devices for rewinding paper from large rolls which are made bythe paper making inachines into smaller .marketable -rolls cutto' the Vdesired width and rolled to afgiven dif-J ameter.

The main object of this invention., isto constructv 'an exceedingly simple Y and eilicient winding shaft which 'remains expanded while paper is being wound thereon and can be contracted to permit the easy removal of the rolls from the shaft.

These, and other objects, will become more apparent from the'specification following as illustrated in the accompanying drawing, in which:

Figure 1 is a longitudinal vsection throughv the shaft showing a roll of paper wound on i same and having its lmid-section broken yaway for they purpose of shortening the drawing without reducing the'scale. Figure 2 is a view similar to Figure 1 but showing the shaft contracted without thejpaper.

' Figure 3 .is a fragmentary side elevation of the interior` portion of the shaft showing the expanding means and the slot forv the vshifting lever. "Figure 4 is a transverse section taken along the line 4"-4v in Figure 1. Figure 5 isan endV elevation of the shaft taken along the line 5 5 in Figure 1.

'Figure 6 is a section taken along` the` lines 6-6 of Fig. 3.

`Similar numbers of reference refer to the same parts throughout the several views.

f Referring in detail to the drawing, the

ldevice is composed'of the following parts, a tubular inner'shaft 10 provided at one vend with a plug end 11 having a small Ashaft 12 formed thereon, as well asa shank 13 which fits snugly into the shaft tube 10 and 1sv secured theretoby means lof a pin 15 which 'projects'out of each sidefof the tube V10. A slot 16 is formed in the tube 10 to receive a pryv bar and a small slot is formed in the shank 13, for the same purpose.

The opposite end of the tube 10 is provided with a threaded plug 17 having a hexagonal portion 18 anda small shaft end 19 corresponding'with the end12.

Around the tube 10 near the plug 17 is placed a sleeve 2O having an undercut end l 21. The sleeve 20 is secured to the tube 10 by means of the screw 22.

Outside of the tube 10 are placed threev pcrtionsV of the outer Yshaft `ladapted L expai'lded radially so that when" expanded the. end 21fof-'t'he sleevev 2O.;k The/opposite 4they'form. a cylindricalshaft.' Eaclr'mem- Y ber`f23'is"tapered'at one vend to vslipunder end of each member 23 is grooved to'V receive y -tlie end'24 vof slidable sleeve. 2.5 whose slot 26 isy somewhat shorter'tlian the slo'tfl6- in the members 10 and 13. f'll'ie'ends fof 'the pin'1'5 occupy the portion offthe'ispace'i-nthevslot's 26`in the sleeve 25.

. Each member 23 is provided on its inner slide in the slots 30 in the member 10 and whose heads 31 on the inside of the'member 10 prevent the bulging of the members 23.

vIt is Vpreferable to enlarge a portion of l each slot30 to admit the heads 31, as `illusface with aplurality of expander blocks 27 which 'are secured to their member by the, shoulderedrivets 28 whose bodies 29 can trated. In vsome instances it may be desira'- i and to depend upon the sleeves 20 and 25 The expander blocks 27i`have onerounded gages the side of the member 23.` Y The side 34 is yflat and rests against either the bottom 35.A

of the groove 36 inthe contracted position or on the bench37 in its expanded position.

VInside lof the tube 10 is placed' a disk 38 which is held in positionby the studs .39.

A similarvdisk 40Vis placed against one side of three rivet heads 31. Thedisks 38v and'V ble toomit .thev heads Von the outermostk riv'- f i ets to facilitate the assembling of the'parts,

to prevent undue expansion ofthe ends of 8.0 l :the members 23. s Y

end32- andl one rounded side 33 which en-V Y 40V arefprovid'ed with eye bolts41 on'each y l `ofwhich isplaced aynut 42. A spring43., is placed in tensionbetween the eye bolts 41. `f f The operation of the device is as follo'ws'zo Paper .from vthe paper machine is', slit" and rolled on to the above described winding. l shaft. .i/Vhen vitis desired lto withdraw thejjA winding shaftV from the rewound rollsv of paper the operator merely inserts a bar into the slot,` 16 vandv pries the tube 10"longi-tudi 'y .nally with relation to the members'23, whichv permits the expander blocks 27 Y to drop into the grooves 36 permitting the member 23 to contract .and the Ashaft to bel easily .withdrawn from .the new rolls of paper. Y i

When the shaft is free of the rolls the bar is withdrawn from the slot'16 and thespring l i 43 now returns the members 23 to their expanded position'. A

lr. A Winding shaft having aniniier tubu- -lar shattV member; a plurality of radially movable longitudinal curved Sections orming an outer Shaft around Said'inner shaft; Wedges between each of Said longitudinal Sections and Said inner shaft; means 'for VSliding rSaid inner Shaft with relation to said outer sections ;and a Spring within said inner tubularv shaft adapted to holdVV 'said Sections in an 'expanded position.y

2. A Winding shaftgconsisting ot a turbularcei'itral Shaft having a plug end shaft at ea'eh end thereof; a pluiality'ot' curved sections around said tubular member uniting #conform ian' outer expan'sible shaft; a. sleeve fixed on one end ofl said tubularinner shaft adapted'to coniine saidfsections against over-v expansion; a slidable sleeve on the'opposite end of-sad tube adapted to slide all of said sections` along Said inner Shaft, ysaid sleeve and ysaid tube having slots formed Vtherein Vadapted to receive a prying lever;

a plurality-of Wedging expander blocks be-A tween Saidusections landsaid tube, each 'ot said bloclarsA having a corresponding recess formed in the tube serving as a cavity for receiving said block invv a'contracted position y and Ahaving afsloping end thereon Where-by said yblock can yslide into an expandedposition; and Spring means between saidY outer Sections and said inner Shaft adapted slide said inner shai-t in a manner to forcesaid sections into anexpanded position.

f FRANK E. `LA-iiofiiioiiV Y 

